Castle Rock
Dive site · Australia
Advanced divers and up
Is it worth the trip?
55Fair out of 100 for your dates
Best on Mon 9: Sea 1 m, Visibility about 10 m, Water 16 °C
Tue 3 · 56 out of 100
- Sea
- 1.3 m
- Wind
- 7 kn
- Gusts
- 10kn
- Air
- 15°C
Wed 4 · 64 out of 100
- Sea
- 0.8 m
- Wind
- 8 kn
- Gusts
- 9kn
- Air
- 17°C
Thu 5 · 52 out of 100
- Sea
- 1.4 m
- Wind
- 5 kn
- Gusts
- 8kn
- Air
- 15°C
Fri 6 · 46 out of 100
- Sea
- 1.4 m
- Wind
- 14 kn
- Gusts
- 18kn
- Air
- 18°C
Sat 7 · 25 out of 100
- Sea
- 2.3 m
- Wind
- 17 kn
- Gusts
- 24kn
- Air
- 12°C
Sun 8 · 46 out of 100
- Sea
- 1.6 m
- Wind
- 9 kn
- Gusts
- 16kn
- Air
- 13°C
Mon 9 · 66 out of 100
- Sea
- 1.0 m
- Wind
- 6 kn
- Gusts
- 11kn
- Air
- 14°C
Tap a day for sea, wind and water. Full forecast
Forecast: next 10 days
Full forecast- Mon 262, good
- Tue 356, fair
- Wed 464, good
- Thu 552, fair
- Fri 646, fair
- Sat 725, poor
- Sun 846, fair
- Mon 966, good
- Tue 1064, good
- Wed 1171, good
The site in three facts
- Advancedand up
- Water 16 °C7 mm wetsuit and hood
- Faces Sswell from there reaches it
Full forecast
every day, every number
The score doesn't know currents, the visibility on the day or your certification.
Suits Advanced divers and up, as a dive guide states it. Scored for Advanced divers.
| Day | Score | Sea | Wind | Gusts | Air |
|---|---|---|---|---|---|
| Mon 2Nov | 62, good | 1.1 m | 3 kn | 6kn | 16°C |
| Tue 3Nov | 56, fair | 1.3 m | 7 kn | 10kn | 15°C |
| Wed 4Nov | 64, good | 0.8 m | 8 kn | 9kn | 17°C |
| Thu 5Nov | 52, fair | 1.4 m | 5 kn | 8kn | 15°C |
| Fri 6Nov | 46, fair | 1.4 m | 14 kn | 18kn | 18°C |
| Sat 7Nov | 25, poor | 2.3 m | 17 kn | 24kn | 12°C |
| Sun 8Nov | 46, fair | 1.6 m | 9 kn | 16kn | 13°C |
| Mon 9Nov | 66, good | 1.0 m | 6 kn | 11kn | 14°C |
| Tue 10Nov | 64, good | 1.0 m | 5 kn | 9kn | 15°C |
| Wed 11Nov | 71, good | – | 8 kn | 13kn | 17°C |
Sea is the waves near the site, in metres; wind and gusts in knots. "Boats in": gusts that keep dive boats in. More
Tide
- Mon 2 NovHigh 05:30 +1.2 mLow 11:13 −0.7 mHigh 17:18 +0.8 mLow 23:19 −1.2 m
- Tue 3 NovHigh 06:16 +1.1 mLow 12:00 −0.7 mHigh 18:15 +0.7 m
- Wed 4 NovLow 00:10 −1.0 mHigh 07:07 +0.9 mLow 12:53 −0.6 mHigh 19:24 +0.6 m
Local clock times; heights about mean sea level. On open coasts the times are usually within a quarter of an hour; in bays, estuaries and on the Gulf of Mexico they can be an hour or more out. Slack water, the safest time to dive where there is current, is about half an hour either side of each high and low. Tide: EOT20 global ocean tide model, Hart-Davis et al. 2021, DGFI-TUM (doi:10.17882/79489), CC BY 4.0. Times and heights computed by us. A model, not a tide table: check a local table before you go.
Forecast updated . It refreshes every three hours. Forecast data: ECMWF, DWD, Météo-France and NOAA, served by Open-Meteo.com (CC BY 4.0). Changed by us. Generated using E.U. Copernicus Marine Service Information.
Best time to go
No month stands out
Good diving days in a typical week, each month, for Advanced divers, from 2016 on (ERA5 history scored the same way).
- Jan5of 7: a trip from Sat 2 Jan
- Feb5of 7: a trip from Sat 6 Feb
- Mar5of 7: a trip from Sat 6 Mar
- Apr4of 7: a trip from Sat 3 Apr
- May4of 7: a trip from Sat 1 May
- Jun4of 7: a trip from Sat 5 Jun
- Jul3of 7: a trip from Sat 3 Jul
- Aug4of 7: a trip from Sat 7 Aug
- Sep3of 7: a trip from Sat 4 Sept
- Oct4of 7: a trip from Sat 2 Oct
- Nov5of 7: a trip from Tue 3 Nov
- Dec5of 7: a trip from Sat 5 Dec
Tap a month to see this spot for a trip then.
Typical, not a forecast: the sea and the mean wind of each day, with no gusts or rain in the history.
Map
the site, its town, photos
Castle Rock on Google Maps · Directions
Each place wears its best day on these dates: green good, amber fair, pale red poor, as the key says.
The map needs JavaScript. Every place on it is listed on this page, and each place's page links to Google Maps.
One finger scrolls the page; two fingers move the map. Pins are our own positions. Map OpenFreeMap, © OpenMapTiles, data © OpenStreetMap contributors.
Photos of Castle Rock
About
the place in full, sources, credits
About Castle Rock
It suits Advanced divers and up, as a dive guide states it. The coast faces S: swell from the S reaches it, and wind from the N blows out to sea. No dive centre within 10 km, the nearest 20 km away. The sea is about 13°C in July, its coldest month (7 mm semi-dry or a drysuit), and 20°C in February, its warmest (7 mm wetsuit and hood). The town to stay in is Point Lonsdale. Within 5 km we also list 3 surf spots and 1 dive site.
- What it is No source states what kind of site it is.
- How deep No source states how deep it goes.
- Who it suits Suits Advanced divers and up, as a dive guide states it.
- Dive centres No dive centre within 10 km, the nearest 20 km away.
Water about 16°C: 7 mm wetsuit and hood. Typical sea temperature for the time of year, not a forecast.
Visibility about 10 m. Typical for the time of year, estimated from ten years of NASA satellite water clarity, not a forecast. Clearest in Jan, Feb, Apr, Jul, Aug, Sep, Oct, Nov and Dec (about 10 m).
The score is the conditions only: the journey, the price and the partners never change it (how we score, how we earn).
Rough cost (estimate): about US$1,780–US$3,430 each
about US$1,780–US$3,430 each · 6 nights, 2 sharing: flights, hire car, stay, food.
Our estimate from typical public prices, not a quote: check the real prices before you book (where they come from). Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
How we worked it out
| What | How we worked it out | Each |
|---|---|---|
| Flights | return MDW to MEL, estimated from distance and season, changing at LAX, full-service airlines, with a hold bag | about US$958–US$2,000 |
| Hire car | 6 days, shared | about US$147–US$241 |
| Stay | 6 nights, a mid-range double, shared | about US$355–US$596 |
| Food | 7 days eating out | about US$322–US$596 |
| Total | about US$1,780–US$3,430 |
Guided dives are not priced yet: we have no sourced price, so it is not in it. Prices from public sources, checked in 2026.
Where to stay: Point Lonsdale
about 10 min by car · 12 places to stay
about US$134/nightcountry average
About Point Lonsdale its beds, food and every spot near it
About US$134 a night is our estimate of the country's average 2-star double room that month: not each town's price, and not a quote. Drives are estimates. Prices are about, in US Dollar (USD): our pound figures at the European Central Bank's rate of 30 October 2026.
Getting there: about 29h 25m
About 29h 25m door to door from Chicago
Fly MDW → MEL, changing at Los Angeles International Airport (LAX), then 1h 35m by road
Flights MDW → MEL on your dates · Skyscanner
An estimate, one way; the journey never changes the score.
In the water
Dives and courses in Point Lonsdale · GetYourGuideDive gear hire in Point Lonsdale · GetYourGuide
Dive centres nearby
Scubra Doctor 20 km
Bay City Scuba 24 km
The nearest named dive centres and shops within 25 km, in a straight line; training agencies where the map states them. Listings, not a recommendation. Dive centres: © OpenStreetMap contributors (ODbL). Credits
What you might see
Too few open records near this site to list its animals. Ask a dive centre what you are likely to see.
This week's visibility, the current and the life no free forecast gives. Ask a dive centre before you book.